Carbureter.



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CARBURETER. l

APPLICATION FILED AUG4| I9I5.

l L7M@ Patented Jan. 9,1917.

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Application led August 4, 1915. `Serial No. 43,534.

To all whom tpmay concern.'

Be it known ythat we, RoBERT KIRBAGH ,and VICTOR Uiin,I citizens, respectively, of Germany and Austria', and both residents of Linden, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Carbureters, of which the following is a specication.

This invention relates to a carburetor of'y novel construction, in Awhich a body of air is drawn across the mouth of the liquid fuel nozzle and thoroughly connningled therewith by the action of a fan wheel, so that a thoroughly homogeneous mixture is obtained.

The invention also relates to various other features of construction all as more fully pointed out in the specification and appended claims. p

In Lthe accompanying drawing: Figure 1 is a plan of a carbureter embodying our invention; F ig.- 2 a vertical longitudinal section thereof on/line 2 2 Fig. 1, and Fig. 3 a horizontal section on line 3 3 Fig. 2.

The carbureter comprises essentially a' cylindrical casing 1, to the'bottom 2 of which is' fitted by bolt 3, a liquid fuel cup 4. This cup is provided with a compartment 5 into which the gasolene enters by means of an inlet 6, the valve 7 ,of'which is operably connected to a oat 8 in the usual or suitable manner. The float is of annular shape and surrounds a tubular sleeve 9, depending from bottom 2 into cup 4, and arranged conf cntrically to bolt 3. This sleeve houses a vertically disposed liquid fuel nozzle 10,

which is tapped into bottom 2, and extends upwardly a distance into the lower portion of casing 1. y

At one side of casing 1 there are arranged, one or more air pipes 11, adapted to receive preferably somewhat preheated air, either from the cylinder walls or from the exhaust Pipes 11 communicate with a common air inlet duct or port 12, which opens into the upright cylindrical shell of casing l. The communication between pipes 11, and duct 12, is controlled by an aper- .tured cup-shaped valve 13 which is fitted into the duct and is operated by means' of a knob 14. r

The explosive mixture leavesv casing 1,-

through; an exit port, which is likewise formed 1n the upright cylindrical shell of the caslng, opposite to duct 12, and which Specification of Letters Patent.

Patented Jan. 9p, 191'?.

communicates with the manifold 15 leading tothe engine.

Upon thel top of casing 1, there is rotatably supported, a cover 16 having a cylindrical flange 17, that extends a considerable distance into the casing and is provided with a pair of ports or openings 18, 19 cooperating. respectively With the air inlet port and the explosive mixture outlet port of the cylinder so that the cover constitutes a combined air-V` and throttle valve.

The cover, may be turned by means of a hand leVer20, coupled to a fork 21, that is by a spring 22, held inengagement with the hub of a gear wheel 23, meshing into a second wheel 24, which is secured to, or made integral with the cover. A groovedv4 lug 25 depending from the cover, and engaging a iiange 26 of `casing .1serves to guide the cover during its rotation. Tt will be seen that by turning the cover in one direction, openings 18, 19 will be more or less opened simultaneously, while by turning the cover in the other direction they will be simultaneously closed so that' in this way, the mixture is automatically rendered leaner when increasedspeed is required. l

Within casing l, there is centered an upright vfan wheel 27, the vanes of which are set at an inclination to its hub. The upright spindle 28 of this wheel, is .stepped in -a lower bearing 29,v extendingpupwardly from bolt 3, and into an upper bearing 30, depending from a screw 31 that is tapped into cover 16, so that by manipulatlng the screw, the frictional resistance of the wheel may be regulated.

The correlation of the parts is such that the liquid fuel nozzle 10, extends from bottom 2 upwardly toward the lower face of the wheel, while the `air inlet duct 12, as `well as the manifold 15 are arranged opposite the periphery of the wheel and out of axial yalinement`with each other. By the construction described the suction of the engine will cause a current of air to How lfrom inlet 12, transversely across casing l,

to the manifold, such current causing a rapid rotation to be imparted to fan wheel 27. Y The whirling air current thus obtainedl will, in turn, induce an upward suction in nozzle 10, so that in this way the liquidfuel is caused to rise toward the lower face of the wheel, and to commingle with the whirling air 'flowing over the Same, so that v in this way, a, thoroughly homogeneous mixture is produced.

Inasmuch as the aircurrent iows across the mouth of the nozzle, it will not only have a tendencyto draw the liquid fuel upward, but also to force out any small impurities, so that-the nozzle is not liable to become clogged.

We claim: l

1. A 'carbureter comprising a casing, a. liquid fuel cup arranged below the same, a` liquid fuel nozzlethat projects from the cup upwardly t distance into the lower portion of the casing, a fan wheel having an -upright spindle which is journaled within the casing, Said nozzle extending toward the lower face of said wheel, an air inlet port and an explosive mixture outlet port entering the casing opposite the periphery ofv the ROBERT KIRBACH. VICTOR BER. 

